Flybacks which are connected to the CRT via only a single rectifier. This type is common in (old) black and white TV sets. It outputs around 20kV (peak to peak).
ZVS(zero voltage switing) driver is good company to use with flyback transformer.
Package includes:
1 x ZVS high voltage driver board(Input voltage/Current: DC 12V-30V/10A)
1 x High voltage Flyback transformer
Reminder:
The flyback transformer is required to rewiring before it used with zvs driver.
See details at: